/Engine/Source/Editor/SequencerCore/Public/MVVM/Views/SOutlinerView.h
Tree selection methods which must be overriden to maintain selection consistency with the rest of sequencer.
virtual void Private_SetItemSelection ( [TWeakViewModelPtr](API\Editor\SequencerCore\TWeakViewModelPtr)< [IOutlinerExtension](API\Editor\SequencerCore\MVVM\Extensions\IOutlinerExtension) > TheItem, bool bShouldBeSelected, bool bWasUserDirected )